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bntran

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21 years ago

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bntran

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14992

May 15th, 2006 13:00

What could go wrong with my Dimension 4550?

I have this Dimension 4550 for more than 3 years, never have any problems. Just one day when I turn it on, nothing goes to the monitor. First thing I can think of is the AGP Graphic Card, I replaced it with an old PCI card, still nothing on the monitor, no beeps, the fan is running, the power button stay green. I took everything out, the only thing left is the Power supply, Motherboard, BIOS, CPU and the memory, the PCI Display adapter, still does the same.  I checked the Monitor is OK.
 
Does anyone have any idea what going wrong? Motherboard? CPU? Power supply?  Is there a way to reset the BIOS?
 
Thanks.
  • R

    Robert76043

    29 Posts

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    Posted May 15th, 2006 14:00

    Does not sound like the power supply. Did you put the monitor on another machine to make sure it is OK? Do you ever see the disk usage light flicker?
  • B

    bntran

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    Posted May 15th, 2006 15:00

    Yes, the monitor and the the graphic adapter are working OK on another machine
    The HD LED only flash once when the Power button is pressed, looks like the BIOS is not loading. 
  • S

    SR45

    2 Intern

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    12138 Posts

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    Posted May 15th, 2006 15:00

    What color are the LED lights in back show  ?  Check all the cables to see if they are tightly inserted
  • B

    bntran

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    Posted May 15th, 2006 15:00

    There is a LED on the motherboard lighted green when plug in 
  • B

    bntran

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    Posted May 15th, 2006 18:00

    Those four lights don't light up at all...
  • S

    SR45

    2 Intern

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    12138 Posts

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    Posted May 15th, 2006 18:00

    On the back of the computer you will see four lights.  What color are they after you boot up  ?
  • S

    shesagordie

    12 Elder

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    46017 Posts

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    Posted May 15th, 2006 19:00

    bntran
     
     Try removing all the PCI cards, the video card and memory, disconnect the IDE and FD cables, check that the front panel cable is connected to motherboard, with nothing else connected to the case, except the power cable, then power the system on.
    If you do not get any beep codes or no LEDs in the back, it would appear that motherboard has died.

    Bev.
  • B

    bntran

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    Posted May 15th, 2006 20:00

    That's it--- No beep, No lights on the back --- I guess the motherboard is fried!

    Thank You ALL for your help!  It's ime to go to eBay!

  • S

    shesagordie

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    46017 Posts

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    Posted May 15th, 2006 21:00

    bntran
     
    You could buy a new Dell OEM D-4550 motherboard for $119.00 from here,
     
    Click on Dell Motherboard.  
     
     
    Bev.
     
     
     
  • R

    Robert76043

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    Posted May 16th, 2006 00:00

    Look on your MotherBoard. There are different part numbers. I tried to buy one for my 4550 there (centrix) earlier today and they did not have it. Mine was a 0J0592 which they did not have. They can point you in the correct direction however.

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